Microchip Technology, Inc. AT90PWM81

Specially designed for lamp ballast and motor control applications, this high-performance Microchip 8-bit AVR® RISC-based microcontroller combines 8KB ISP flash memory, 10-channel advanced PWM, 11-channel 10-bit A/D converter, one 10-bit D/A converter, one 12-bit high speed power stage controller (with extended PSC2 features) with 16-bit Resolution Enhancement. The device operates between 2.7-5.5 volts. Additional Features Advanced RISC architecture 131 powerful instructions - most single clock cycle execution 32 × 8 general purpose working registers Fully static operation Up to 1 MIPS throughput per MHz On-chip 2-cycle multiplier Data and non-volatile program memory 8Kbytes of in-system programmable program memory flash Endurance: 10,000 write/erase cycles Lock bits protection Optional 2/4Kbytes boot code section with independent lock bits In-system programming by on-chip boot program True read-while-write operation 512 Bytes of in-system programmable EEPROM Four bytes page size 256 Bytes Internal SRAM On-chip debug support (debugWIRE) Peripheral features One 12-bit high speed PSC (Power Stage Controllers with extended PSC2 features) Non overlapping inverted PWM output pins with flexible dead-time Variable PWM duty cycle and frequency Synchronous update of all PWM registers Enhanced resolution mode (16 bits) Additional register for ADC synchronization Input capture Four output pins and output matrix One 12-bit high speed PSC (Power Stage Controller) Auto-stop function for event driven PFC implementation Non overlapping inverted PWM output pins with flexible dead-time Variable PWM duty cycle and frequency Synchronous update of all PWM registers Enhanced resolution mode (16 bits) Input capture One 16-bit simple general purpose timer/counter 10-bit ADC Up to 11 single ended channels and one fully differential ADC channel pair Programmable gain (5×, 10×, 20×, 40× on differential channel) Internal reference voltage One 10-bit DAC Three analog comparators with Resistor-array to adjust comparison voltage DAC to adjust comparison voltage One SPI Three external interrupts Programmable watchdog timer with separate on-chip oscillator Special microcontroller features Low power idle, noise reduction, and power down modes Power-on reset and programmable brown-out detection Flag array in bit-programmable I/O space (three bytes) In-system programmable via SPI port Internal low power calibrated RC oscillator (8MHz or 1MHz, low jitter) On chip PLL for fast PWM (32MHz, 48MHz, 64MHz) and CPU (12MHz, 16MHz); PLL source RC & XTAL Dynamic clock switch Temperature sensor Operating voltage: 2.7V - 5.5V Operating temperature: -40°C to +105°C or -40°C to +125°C Operating speed 5V: 16MHz core, 64MHz PLL 3.3V: 12MHz core, 48MHz PLL